header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height:30px;
    background-color: #fff;
    padding:10px;
    border-bottom: 1px solid #f7f7f7;
}
header .dvch{
   
    margin:0 25px 0 20px;
    flex: 1;
    border-radius: 15px;
    background-color: #f7f7f7;
}
header .dvch span{
    margin-left:8px;
    color:#ccc;
}
header .dvch input{
    width:82%;
    height:30px;
outline: 0;
border:0;
background-color: #f7f7f7;
}
/* 主体 */
.main{
    display: flex;
    justify-content: space-between;
    flex: 1;
    overflow-y: scroll;
  }
  .main .cate-left{
    background-color: #f8f8f8;
    width: 85px;
  }
  .main .cate-left li{
    height: 46px;
    line-height: 46px;
    font-size: 14px;
    text-align: center;
  
  }
  
  .main .cate-left li a{
    display: inline-block;
    width: 100%;
    height: 100%;
    color:#000;
    /* padding: 0 10px; */
  }
  .main .cate-left li.active a{
    background-color: #fff;
    color: #E43130; 
  }
  .main .content{
    flex:1;
    overflow-y: scroll;
  }
  .main .content-item{
    display: flex;
    flex-direction: column;
  }
  .main .content-item h3{
    font-size: 14px;
    font-weight: bold;
    line-height: 46px;
    margin-left: 5px;
  }
  .main .content-item ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 10px;
  }
  .main .content-item ul li{
    width: 30%;
    text-align: center;
    margin-bottom: 10px;
  }
  .main .content-item ul li img{
    width: 100%;
  }
  .main .content-item ul li p{
    font-size: 14px;
    color: #000;
  }